Realistically, the world needs a lot of renewables *and* nuclear to achieve the 50% direct electrification that is predicted/anticipated by 2050. As well as this, a further 10% of energy demand is likely to come from renewable hydrogen (again, either from renewables or nuclear), and as I outline in my most recent book; a 30% of energy demand from decarbonised natural gas, followed by 10% biomethane.

An important point about hydrogen is that intermittency/oversupply is perfectly complemented by electrolysis. This is because electrolysers are starting to be built a large scale (industrialisation) and this will reduce costs to the point that green (renewable) hydrogen should compete with blue (decarbonised gas) hydrogen by 2025, and possibly natural gas by around 2030 - this is according to Stiesdal, Nel, Siemens as well as a UN consortium led by a Saudi conglomerate called the 'Green Hydrogen Catapult', among others. This means that hydrogen will be produced from wind and solar, and then as outlined by the #PowerTheEU initiative; all gas turbines in Europe will switch to hydrogen; replacing the 30% or more of variable daily or seasonal demand peaks that are currently met by natural gas.

My book Planet Zero Carbon is available on Amazon, and I am also on Twitter @DWilliams_2021 where I tweet about the energy transition, net zero and climate change.